This build is based on the same CAF release LNX.LA.3.5.1-00710-8x10.0 that ZTE initially started off with their stock firmware.

Important. Prerequisites!!! You need to install Android KitKat on your Open C first (e.g. EU_FFOS+to+Android.zip will do). You also need to have this ClockWorkMod recovery installed (TWRP seems to have some issues with CAF otapackages :o).